An experimental and numerical study of FSI applied to sail yacht flexible hydrofoil with large deformations

9th Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, Flow-Induced Vibration & Noise

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Title An experimental and numerical study of FSI applied to sail yacht flexible hydrofoil with large deformations
Creator Vanilla Temtching Temou; SEAIR
Odran Fagherazzi; <div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>ComposiTIC-IRDL</span></p><p>Compositic, 2 Allée copernic</p><p>56270 Ploemeur, France</p><p><span><br /></span></p></div></div></div>
Benoit Augier; <div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>IFREMER Brest</span></p><div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>1625 Route de Sainte-Anne 29280 Plouzané</span></p></div>&
Jacques-André Astolfi; <div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>Institut de Recherche de l’Ecole Navale</span></p><p><span>Ecole Navale</span></p><p><span>29240 Brest Armées</span></p></div></div></div>
David Raison; <div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><span>SEAir-Foil resource center</span></p><p><span>10 Rue chalutier les 2 anges </span></p><p><span>56100 Lorient, France </span></p></div></div></div><br />
Subject FSI; hydrofoil; AVL; FEM; Beam theory; Xfoil; VLM; panel method
Description The recent use of large aspect ratio and highly loaded composite hydrofoils on sailing boats illustrates the limit of the assumption of rigid body. When flying, the hydrofoil presents large deformations which impact significantly the hydrodynamic loads expected. The present work focuses on an experimental campaign performed on a trapezoidal hydrofoil, made of polyacetate material, in the hydrodynamic tunnel at the Research Institute of French Naval Academy. Large deformations up to 4.5% of the span on the hydrofoil's tip are measured at angle of incidence 10° for Re=0.7x106 calculated at mean chord. Vibration analysis performed on this foil, highlights an increase of its resonance frequencies with bending loading. A coupled approach between the Vortex Lattice Method (VLM) potential flow code, AVL, for inviscid calculations, corrected to consider the viscous component and, an in-house structural code based on beam theory by Finite Element Method (FEM) is developed for this application. The comparisons of simulations show good agreements with experiments in a large range of angles of incidence and flow velocities. 
Publisher Paper Management System for FIV2018
Contributor French Naval Research Academy, SEAIR
Date 2018-05-27 16:04:24
Type Peer-reviewed Paper
Numerical; experimental
Format application/pdf
Source Paper Management System for FIV2018; FIV2018 Conference
Language en
Rights Authors who submit to this conference agree to the following terms:<br /> <strong>a)</strong> Authors retain copyright over their work, while allowing the conference to place this unpublished work under a <a href="">Creative Commons Attribution License</a>, which allows others to freely access, use, and share the work, with an acknowledgement of the work's authorship and its initial presentation at this conference.<br /> <strong>b)</strong> Authors are able to waive the terms of the CC license and enter into separate, additional contractual arrangements for the non-exclusive distribution and subsequent publication of this work (e.g., publish a revised version in a journal, post it to an institutional repository or publish it in a book), with an acknowledgement of its initial presentation at this conference.<br /> <strong>c)</strong> In addition, authors are encouraged to post and share their work online (e.g., in institutional repositories or on their website) at any point before and after the conference.

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